bool sub-objects using relative coordinates, shape definitions using relative coordinates, this allows transform blocks in each, and shape references to combine absolute transform with the relative transform

git-svn-id: svn://anubis/fart/trunk@287 7f9b0f55-74a9-4bce-be96-3c2cd072584d

util/Transform.cc

@@ -104,3 +104,10 @@ Ray Transform::transform_ray(const Ray & r)
     Ray res(newPosition, newDirection);
     return res;
 }
+
+Transform Transform::operator*(const Transform & other) const
+{
+    Transform t;
+    t.m_matrix = m_matrix * other.m_matrix;
+    return t;
+}

util/Transform.h

@@ -36,6 +36,7 @@ class Transform
         Vector transform_direction(const Vector & v);
         Vector transform_normal(const Vector & v);
         Ray transform_ray(const Ray & r);
+        Transform operator*(const Transform & other) const;
 
     protected:
         Matrix m_matrix;